2018 VOLVO S60 cruise control

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Radar sensor
The radar sensor is designed to help detect cars or larger vehicles driving in the same direction asyour vehicle, in the same lane.
The radar sensor and its limitationsIn addition to being used by the Adaptive Cruise Control (ACC), the radar sensor is also used byDistance Alert (see Distance Alert – introduction(p. 190)) and Collision Warning with Full Auto-brake and Pedestrian Detection (see Collisionwarning – introduction (p. 201)).
WARNING
• If there is visible damage to the front grille or you suspect that the radar sensormay be damaged in any way, contact atrained and qualified Volvo service techni-cian as soon as possible. The radar sen-sor may only function partially (or not atall) if it is damaged or is not securely fas-tened in place.
• Accessories or other objects, such asextra headlights, must not be installed infront of the grille.
• Modification of the radar sensor couldmake its use illegal.
The radar sensor's capacity to detect vehiclesahead is impeded: •
if the radar sensor is obstructed and cannotdetect other vehicles, for example in heavyrain, or if snow or other objects are obscuringthe radar sensor.
NOTE
Keep the area in front of the radar sensor clean.
•
if the speed of vehicles ahead is significantly different from your own speed.
Related information
•Adaptive Cruise Control – introduction(p. 175)
• Collision warning – introduction (p. 201)
• Distance Alert – introduction (p. 190)
Adaptive Cruise Control – limitations
The ACC cannot cover all driving situations and traffic, weather and road conditions.
Situations where ACC may not function optimally
WARNING
• The radar sensor has a limited field of vision. In some situations it may detect avehicle later than expected or not detectother vehicles at all.
• If ACC is not functioning properly, cruisecontrol will also be disabled.

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Radar sensor's field of vision (shown in pink)
In certain situations, the radar sensor cannot detect vehicles at close quarters, for examplea vehicle that suddenly enters the lanebetween your vehicle and the target vehicle.
Small vehicles, such as motorcycles, or vehi- cles not driving in the center of the lane mayremain undetected.
In curves, the radar sensor may detect the wrong vehicle or lose sight of the target vehi-cle.
WARNING
•Adaptive Cruise Control cannot cover all driving situations and traffic, weather androad conditions. The "Function" sectionprovides information about limitations thatthe driver must be aware of before usingthis feature.
• This system is designed to be a supple-mentary driving aid. It is not, however,intended to replace the driver's attentionand judgement. The driver is responsiblefor maintaining a safe distance and speedand must intervene if Adaptive CruiseControl does not maintain a suitablespeed or suitable distance to the vehicleahead.
• Maintenance of ACC components mayonly be performed by a trained and quali-fied Volvo technician.
WARNING
• Adaptive Cruise Control is not a collision avoidance system. The driver is alwaysresponsible for applying the brakes if thesystem does not detect another vehicle.
• Adaptive Cruise Control does not react topeople or animals, or small vehicles suchas bicycles and motorcycles. It also doesnot react to slow moving, parked orapproaching vehicles, or stationaryobjects.
• Do not use Adaptive Cruise Control indemanding driving conditions such as citydriving or other heavy traffic situations, inslippery conditions, when there is a greatdeal of water or slush on the road, duringheavy rain or snow, in poor visibility, onwinding roads or on highway on- or off-ramps.
Related information
• Adaptive Cruise Control – introduction(p. 175)

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Adaptive Cruise Control – symbols and messages
Symbols and messages in the displayA text message can be erased by pressing briefly on the OK button on the turn signal lever.
Symbol Message Description
Green symbol A speed has been set.
White symbol ACC is in standby mode but no speed has been set.
- Standard cruise control has been selected manually.
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Set ESC to Normal to enable CruiseACC cannot be put in active mode until the stability system is switched normal operating mode, see Stability sys- tem – introduction (p. 166) for more information.
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Cruise control CancelledACC has been automatically switched off. The driver has to regulate the vehicle

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SymbolMessage Description
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Cruise control Service requiredACC is not functioning. Contact a trained and qualified Volvo service technician.
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Press Brake To hold +
an audible signal The vehicle is at a standstill and ACC will release the brakes before the parking brake engages to keep the vehicle stopped but a problem with the parking brake means that the vehicle may begin to roll. The driver will have to apply the brakes. The message will remain in the display and the audible signal will continue until the driver applies the brakes or presses the accelerator pedal.
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Below 30 km/h Only fol- lowingThis is displayed if you try to activate ACC at speeds below approx. 18 mph (30 km/h) without a vehicle ahead within range (approx. 100 ft/30 meters).
Related information
• Adaptive Cruise Control – introduction (p. 175)

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Adaptive Cruise Control – troubleshooting
If the message Radar blocked See manual is
displayed, this means that the radar signals from the sensor have been obstructed and that a vehi- cle ahead cannot be detected. This, in turn, means that the functions of the ACC, Distance Alert, and Collision Warning Sys-
tem with Auto-brake and Pedestrian Detectionwill not function. The table lists possible causes for this message being displayed, and suitable actions.
Cause
Action
The surface of the radar in the grille is dirty or obstructed in some way. Clean the radar surface, or remove the object causing the obstruction.
Heavy rain or snow is interfering with the radar signals. No action possible. Heavy precipitation may affect the function of the radar.Swirling water or snow from the surface of the road may interfere with the radar signals. No action possible. A very wet or snow-covered road surface may affect thefunction of the radar.
The surface of the radar is clean but the message remains in the display. Wait a short time. It may take several minutes for the radar to detect that it is no longer obstructed.
Related information
•Adaptive Cruise Control – introduction (p. 175)

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Distance Alert – introduction
Distance Alert is part of Adaptive Cruise Control and is a function that provides information aboutthe time interval to the vehicle ahead.
IntroductionDistance Alert is active at speeds above approxi- mately 18 mph (30 km/h). Time interval informa-tion is only given for a vehicle that is drivingahead of your vehicle in the same direction. Noinformation is provided for vehicles driving towardyou, moving very slowly, or at a standstill.
Amber warning light 5
.
An amber warning light in the windshield glows steadily if your vehicle is closer to the one aheadthan the set time interval.
NOTE
Distance Alert only monitors distance to the vehicle ahead while Adaptive Cruise Control isin standby mode or off.
WARNING
Distance Alert only indicates the distance to the vehicle ahead. It does not affect thespeed of your vehicle.
Related information
• Distance Alert – operation (p. 190)
• Distance Alert – limitations (p. 191)
• Distance Alert – symbols and messages (p. 193)
Distance Alert – operation
Distance Alert is part of Adaptive Cruise Control and is a function that provides information aboutthe time interval to the vehicle ahead.
Press the button in the center instrument panel to switch this function on or off. The indicatorlight in the button illuminates when the functionis on. Depending on the optional equipment selected, there may not be room for a Distance Alert but-ton in the center console. In this case, the func-tion is controlled through the menu system. Press MY CAR and go to
SettingsCar settings
Distance alertOn/Off.
5
The illustration is generic; certain details may vary from model to model

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Distance Alert – symbols and messagesDistance Alert is part of Adaptive Cruise Control and is a function that provides information aboutthe time interval to the vehicle ahead.Symbols and text messagesA text message can be erased by pressing briefly on the OK button on the turn signal lever.
Symbol Message Description
Radar blocked See manualDistance Alert has been temporarily disconnected because the radar is obstructed in some way and cannot detect other vehicles. See Adaptive Cruise Control – limitations (p. 185) for information on the radar sensor

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NOTE
The camera has certain limitations, see Adaptive Cruise Control – limitations (p. 185).
WARNING
•DAC is not intended to extend the dura- tion of driving. Always plan breaks at reg-ular intervals to help remain alert.
• A warning from DAC should not beignored. A driver may not be aware ofhow fatigued he/she has become.
• In certain cases, fatigue may not affectthe driver